py3: remove __future__ imports

tensorboard/__init__.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """TensorBoard is a webapp for understanding TensorFlow runs and graphs."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 from tensorboard import lazy as _lazy
 from tensorboard import version as _version

tensorboard/__main__.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Module that allows the user to run `python -m tensorboard`."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 from tensorboard import main as _main
 

tensorboard/backend/application_test.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Unit tests for application package."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import json
 

tensorboard/backend/empty_path_redirect.py

@@ -25,10 +25,6 @@
 the actual path "/foo", and so will be redirected to "/foo/".
 """
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
 
 class EmptyPathRedirectMiddleware(object):
     """WSGI middleware to redirect from "" to "/"."""

tensorboard/backend/empty_path_redirect_test.py

@@ -14,10 +14,6 @@
 # ==============================================================================
 """Tests for `tensorboard.backend.empty_path_redirect`."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
 
 import werkzeug
 from werkzeug import test as werkzeug_test

tensorboard/backend/event_processing/data_provider.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Bridge from event multiplexer storage to generic data APIs."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import base64
 import json

tensorboard/backend/event_processing/data_provider_test.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Unit tests for `tensorboard.backend.event_processing.data_provider`."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 

tensorboard/backend/event_processing/directory_loader.py

@@ -15,9 +15,6 @@
 
 """Implementation for a multi-file directory loader."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 from tensorboard.backend.event_processing import directory_watcher
 from tensorboard.backend.event_processing import io_wrapper

tensorboard/backend/event_processing/directory_loader_test.py

@@ -15,9 +15,6 @@
 
 """Tests for directory_loader."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import functools
 import glob

tensorboard/backend/event_processing/directory_watcher.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 
 """Contains the implementation for the DirectoryWatcher class."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import bisect
 

tensorboard/backend/event_processing/directory_watcher_test.py

@@ -15,9 +15,6 @@
 
 """Tests for directory_watcher."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import shutil

tensorboard/backend/event_processing/event_accumulator.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 """Takes a generator of values, and accumulates them for a frontend."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections
 import threading

tensorboard/backend/event_processing/event_accumulator_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 

tensorboard/backend/event_processing/event_file_inspector.py

@@ -108,9 +108,6 @@
    outoforder_steps     []
 """
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections
 import itertools

tensorboard/backend/event_processing/event_file_inspector_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import shutil

tensorboard/backend/event_processing/event_file_loader.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 
 """Functionality for loading events from a record file."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import contextlib
 

tensorboard/backend/event_processing/event_file_loader_test.py

@@ -15,9 +15,6 @@
 
 """Tests for event_file_loader."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import abc
 import io

tensorboard/backend/event_processing/event_multiplexer.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Provides an interface for working with multiple event files."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import threading

tensorboard/backend/event_processing/event_multiplexer_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import os.path

tensorboard/backend/event_processing/io_wrapper.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 """IO helper functions."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections
 import os

tensorboard/backend/event_processing/io_wrapper_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import tempfile

tensorboard/backend/event_processing/plugin_asset_util.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 """Load plugin assets from disk."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os.path
 

tensorboard/backend/event_processing/plugin_event_accumulator.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 """Takes a generator of values, and accumulates them for a frontend."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections
 import threading

tensorboard/backend/event_processing/plugin_event_accumulator_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 

tensorboard/backend/event_processing/plugin_event_multiplexer.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Provides an interface for working with multiple event files."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import threading

tensorboard/backend/event_processing/plugin_event_multiplexer_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import os.path

tensorboard/backend/event_processing/reservoir.py

@@ -15,9 +15,6 @@
 
 """A key-value[] store that implements reservoir sampling on the values."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections
 import random

tensorboard/backend/event_processing/reservoir_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 from six.moves import xrange  # pylint: disable=redefined-builtin
 import tensorflow as tf

tensorboard/backend/experiment_id.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Application-level experiment ID support."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import re
 

tensorboard/backend/experiment_id_test.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Tests for `tensorboard.backend.experiment_id`."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import json
 

tensorboard/backend/experimental_plugin.py

@@ -17,10 +17,6 @@
 Contains the mechanism for marking plugins as experimental.
 """
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
 
 class ExperimentalPlugin(object):
     """A marker class used to annotate a plugin as experimental.

tensorboard/backend/http_util.py

@@ -14,10 +14,6 @@
 # ==============================================================================
 """TensorBoard HTTP utilities."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
 
 import gzip
 import json

tensorboard/backend/http_util_test.py

@@ -15,10 +15,6 @@
 # ==============================================================================
 """Tests HTTP utilities."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
 
 import gzip
 import struct

tensorboard/backend/json_util.py

@@ -23,9 +23,6 @@
 keyword argument overrides this.
 """
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections
 import math

tensorboard/backend/json_util_test.py

@@ -13,9 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections
 import string

tensorboard/backend/path_prefix.py

@@ -19,9 +19,6 @@
 See the `--path_prefix` flag docs for more details.
 """
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 from tensorboard import errors
 

tensorboard/backend/path_prefix_test.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Tests for `tensorboard.backend.path_prefix`."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import json
 

tensorboard/backend/process_graph.py

@@ -18,11 +18,6 @@
 """
 
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
-
 def prepare_graph_for_ui(
     graph, limit_attr_size=1024, large_attrs_key="_too_large_attrs"
 ):

tensorboard/backend/security_validator.py

@@ -14,9 +14,6 @@
 # ==============================================================================
 """Validates responses and their security features."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import collections